Eclipses
Physics ⇒ Earth and Space Physics
Eclipses starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Eclipses.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
A lunar eclipse can only occur during which phase of the Moon?
A solar eclipse is observed at a location where only part of the Sun is covered by the Moon. What type of eclipse is this?
A student observes a solar eclipse where a thin ring of sunlight is visible around the Moon. What type of eclipse is this?
Calculate the approximate time it takes for the Moon to move through Earth's umbra during a total lunar eclipse if the Moon's orbital speed is about 1 km/s and the Earth's umbra at the Moon's distance is about 9,200 km wide.
Describe the difference between a total and a partial lunar eclipse.
Describe the difference between the umbra and penumbra in the context of eclipses.
Describe the Saros cycle and its significance in predicting eclipses.
During a total lunar eclipse, what color does the Moon typically appear and why?
Explain why annular eclipses occur instead of total solar eclipses when the Moon is farther from Earth.
Explain why lunar eclipses are visible from more locations on Earth than solar eclipses.
Explain why solar eclipses do not occur every month, even though the Moon orbits the Earth every month.
If the diameter of the Moon is 3,474 km and its distance from Earth during a solar eclipse is 384,400 km, calculate the angular diameter of the Moon as seen from Earth. (Use the small angle formula: angular diameter in radians = diameter/distance)
If the Earth's umbra is about 1.4 million km long, explain why the Moon can be completely covered during a lunar eclipse.
